Chocolate Pie - cooking recipe

Ingredients

1 c. sugar
3 Tbsp. cocoa
5 Tbsp. flour
1 1/2 c. milk
3 egg yolks
1/3 stick butter
1 tsp. vanilla

Preparation

Mix dry ingredients.
Add milk; mix well.
Add beaten egg yolks, butter and vanilla.
Cook in top of double boiler until thick.
Pour in prebaked pie shell or graham cracker shell.